CN107264513A - A kind of electricity-generating control method of hybrid electric vehicle, equipment and system - Google Patents
A kind of electricity-generating control method of hybrid electric vehicle, equipment and system Download PDFInfo
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- CN107264513A CN107264513A CN201710556731.8A CN201710556731A CN107264513A CN 107264513 A CN107264513 A CN 107264513A CN 201710556731 A CN201710556731 A CN 201710556731A CN 107264513 A CN107264513 A CN 107264513A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
- B60H2001/3261—Cooling devices information from a variable is obtained related to temperature of the air at an evaporating unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3286—Constructional features
- B60H2001/3292—Compressor drive is electric only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The invention provides a kind of electricity-generating control method of hybrid electric vehicle, hybrid electric vehicle includes engine, air-conditioning system and battery, and method includes:First threshold, Second Threshold and the 3rd threshold value are set, wherein, Second Threshold is more than first threshold;Obtain the working condition of the travel speed, the working condition of air-conditioning system and engine of hybrid electric vehicle;If it is opening that the travel speed of hybrid electric vehicle, which is equal to the working condition that the 0, working condition of engine is opening and air-conditioning system, cell voltage and engine speed are obtained;If cell voltage is more than first threshold, control engine keeps rotating speed;If cell voltage is less than or equal to first threshold and engine speed is less than the 3rd threshold value, control engine speed is incremented to the 3rd threshold value;If cell voltage is more than Second Threshold, control engine speed is successively decreased.
Description
Technical field
The present invention relates to hybrid electric vehicle technical field, more particularly to a kind of electricity-generating control method of hybrid electric vehicle, set
Standby and system.
Background technology
Raising with people to environmental consciousness, energy-conservation and environmental protection have incorporated the dribs and drabs of our lives gradually.Automobile
The transition of industry also has become everybody common recognition, and energy-conserving and environment-protective concept is rooted in the hearts of the people, and hybrid electric vehicle have multi power source,
Save, discharge low remarkable advantage, obtain worldwide highest attention.
Hybrid vehicle gradually approved by everybody as a kind of transiens product of fuel vehicle to new-energy automobile,
It is on the basis of pure electric vehicle increase petrol engine as stand-by power, electric car by driven by power, what it was carried
Fuel engines can power for vehicle drive motor, be lighted to battery increase, realize and charged when running.Hybrid vehicle has
There is multi power source, save, discharge low remarkable advantage, obtain worldwide highest attention.For example patent document Japan is special
The hybrid electric vehicle for opening flat 9-298802 publications record possesses the engine of driving front-wheel and the dynamotor of driving trailing wheel,
And in vehicle deceleration, the electric energy produced by the regenerative braking of dynamotor is charged into battery.
Have in existing hybrid electric vehicle after a set of ripe air-conditioning system, but air-conditioning system operation, during stationary vehicle,
The idle power to provide air-conditioning system operation of engine, now other power capacities can only lose engine in vain.
Existing hybrid electric vehicle uses electric air-conditioning, therefore pure electric control, once battery supply feed, vehicle will be unable to normal fortune
OK, opening air-conditioning also causes hybrid electric vehicle course continuation mileage to greatly shorten.
The content of the invention
It is an object of the invention to provide a kind of electricity-generating control method of hybrid electric vehicle, equipment and system.By changing
Control strategy, while continual mileage is ensured, rationally using the energy of engine, improves capacity usage ratio, reaches energy-saving ring
The purpose of guarantor.
In order to solve the above-mentioned technical problem, embodiment of the invention proposes a kind of generating of hybrid electric vehicle first
Control method, the hybrid electric vehicle includes engine, air-conditioning system and battery, and methods described includes:First threshold, the are set
Two threshold values and the 3rd threshold value, wherein, the Second Threshold is more than the first threshold;Obtain the traveling speed of the hybrid electric vehicle
The working condition of degree, the working condition of the air-conditioning system and the engine;If the traveling speed of the hybrid electric vehicle
The working condition that degree is equal to 0, the working condition of the engine is opening and the air-conditioning system is opening, then
Obtain cell voltage and engine speed;If the cell voltage is more than the first threshold, the engine is controlled to protect
Hold rotating speed;If cell voltage is less than or equal to first threshold and engine speed and is less than the 3rd threshold value, start described in control
Machine rotating speed is incremented to the 3rd threshold value;If the cell voltage is more than the Second Threshold, the engine speed is controlled to pass
Subtract.
In a preferred embodiment of the invention, the air-conditioning system includes evaporator, and methods described further comprises:If
The 4th threshold value and the 5th threshold value are put, wherein, the 4th threshold value is more than the 5th threshold value;Obtain evaporator surface temperature;Such as
Really described evaporator surface temperature is more than the 4th threshold value, then controls the air-conditioning system to be operated in opening;If institute
Evaporator surface temperature is stated less than the 5th threshold value, then controls the air-conditioning system work in off position.
In a preferred embodiment of the invention, methods described further comprises:If the traveling of the hybrid electric vehicle
Speed be equal to 0 and the air-conditioning system working condition be closed mode, then after controlling the engine idle n minutes
It is flame-out.
In a preferred embodiment of the invention, methods described further comprises:If the traveling of the hybrid electric vehicle
It is opening that speed, which is equal to the working condition that the 0, working condition of the engine is closed mode and the air-conditioning system,
The engine is then controlled to be in opening.
In a preferred embodiment of the invention, methods described further comprises:If the traveling of the hybrid electric vehicle
Speed is not equal to 0, then controls the engine to be operated in efficiency power generation pattern.
In a preferred embodiment of the invention, the control engine, which is operated in efficiency power generation pattern, includes:If
Put theoretical power consumption oil consumption and tolerance value;Obtain realtime power oil consumption;Judge whether the realtime power oil consumption is more than the theory
Power oil consumption and the tolerance value and;If the realtime power oil consumption is more than the theoretical power (horse-power) oil consumption and the tolerance value
Sum, then control engine adjustment rotating speed, otherwise continue to judge the realtime power oil consumption whether less than the theoretical work(
Rate oil consumption and the difference of the tolerance value;If it is determined that the realtime power oil consumption is less than the theoretical power (horse-power) oil consumption and the tolerance
The difference of value, then control the engine adjustment rotating speed, otherwise control the engine to keep rotating speed.
In order to solve the above-mentioned technical problem, embodiment of the invention also proposes a kind of generating control of hybrid electric vehicle
Control equipment, the hybrid electric vehicle includes engine, air-conditioning system and battery, and the equipment includes:Threshold setting module, is used for
First threshold, Second Threshold and the 3rd threshold value are set, wherein, the Second Threshold is more than the first threshold;Acquisition module, is used
In the work shape for the travel speed, the working condition of the air-conditioning system and the engine for obtaining the hybrid electric vehicle
State;Control module, if the working condition that the travel speed of the hybrid electric vehicle is equal to the 0, engine is opening
And the working condition of the air-conditioning system is opening, then for obtaining cell voltage and engine speed;If described
Cell voltage is more than the first threshold, then for controlling the engine to keep rotating speed, if cell voltage is less than or equal to
First threshold and engine speed are less than the 3rd threshold value, then for controlling the engine speed to be incremented to the 3rd threshold value;If
The cell voltage is more than the Second Threshold, then for controlling the engine speed to successively decrease.
In a preferred embodiment of the invention, the air-conditioning system includes evaporator, and the equipment further comprises:Institute
Threshold setting module is stated to be additionally operable to set the 4th threshold value and the 5th threshold value, wherein, the 4th threshold value is more than the 5th threshold value;
The acquisition module is additionally operable to obtain evaporator surface temperature;If the evaporator surface temperature is more than the 4th threshold value,
Then the control module is used to control the air-conditioning system to be operated in opening;If the evaporator surface temperature is less than institute
The 5th threshold value is stated, then the control module is used to control the air-conditioning system work in off position.
In a preferred embodiment of the invention, the equipment further comprises:If the traveling of the hybrid electric vehicle
Speed be equal to 0 and the air-conditioning system working condition be closed mode, then the control module be additionally operable to control the hair
Stop working after motivation is idle n minutes.
In a preferred embodiment of the invention, the equipment further comprises:If the traveling of the hybrid electric vehicle
It is opening that speed, which is equal to the working condition that the 0, working condition of the engine is closed mode and the air-conditioning system,
Then the control module is additionally operable to control the engine to be in opening.
In a preferred embodiment of the invention, the equipment further comprises:If the traveling of the hybrid electric vehicle
Speed is not equal to 0, then the control module is additionally operable to control the engine to be operated in efficiency power generation pattern.
In a preferred embodiment of the invention, the control engine, which is operated in efficiency power generation pattern, includes:If
Put theoretical power consumption oil consumption and tolerance value;Obtain realtime power oil consumption;Judge whether the realtime power oil consumption is more than the theory
Power oil consumption and the tolerance value and;If the realtime power oil consumption is more than the theoretical power (horse-power) oil consumption and the tolerance value
Sum, then control engine adjustment rotating speed, otherwise continue to judge the realtime power oil consumption whether less than the theoretical work(
Rate oil consumption and the difference of the tolerance value;If it is determined that the realtime power oil consumption is less than the theoretical power (horse-power) oil consumption and the tolerance
The difference of value, then control the engine adjustment rotating speed, otherwise control the engine to keep rotating speed.
In order to solve the above-mentioned technical problem, embodiment of the invention additionally provides a kind of generating of hybrid electric vehicle
Control system, the system includes hybrid electric vehicle and the power generation control device.
Electricity-generating control method, equipment and the system for a kind of hybrid electric vehicle that the present invention is provided.Wherein, air-conditioning system is passed through
Middle evaporator surface temperature controls the Push And Release of air-conditioning system, and different power generation modes and air-conditioning system are realized according to driving cycle
With reference to operation, reach that not only meeting user enjoys the demand of air-conditioning but also can charge the battery, so as to improve energy utilization rate, reaches section
The purpose of energy.
Brief description of the drawings
Fig. 1 is a kind of structural framing of the power-generating control system of hybrid electric vehicle according to the specific embodiment of the invention
Figure;
Fig. 2 is the structured flowchart of the air-conditioning system according to the specific embodiment of the invention;
Fig. 3 is a kind of structured flowchart of the power generation control device of hybrid electric vehicle according to the specific embodiment of the invention;
Fig. 4 is a kind of flow chart of the electricity-generating control method of hybrid electric vehicle according to the specific embodiment of the invention;
Fig. 5 is a kind of flow of the electricity-generating control method of hybrid electric vehicle according to another embodiment of the invention
Figure;
Fig. 6 is the workflow diagram of the efficiency power generation pattern according to another embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.
Element/component of the same or like label used in drawings and the embodiments is same or like for representing
Part.And accompanying drawing is only schematical, and element therein is without perspec-tive.
Fig. 1 is a kind of structural framing of the power-generating control system of hybrid electric vehicle according to the specific embodiment of the invention
Figure.Reference picture 1, power-generating control system 100 include power generation control device 200 and with starting that power generation control device 200 is connected
Machine system 300, air-conditioning system 600 and battery management system 500.Wherein, engine system 300 includes generator 301, engine
302 and ECU (engine control system) 303.Battery management system 500 includes battery 501, in specific implementation, battery management
System 500 can be band battery management system or without battery management system in a balanced way in a balanced way.Battery 501 can be with
It is n groups cell or n Battery pack groups.
In specific implementation, power generation control device 200 can be improved on the basis of existing entire car controller (VCU)
Form.The institute that existing entire car controller can be completed is functional.
In the system of power-generating control system 100, power generation control device 200 can pre-set first threshold, Second Threshold
It is opening and air-conditioning system when the travel speed of hybrid electric vehicle is equal to the 0, working condition of engine with the 3rd threshold value
When 600 working condition is opening, cell voltage and engine speed can be obtained.When cell voltage is more than first threshold
When, engine 302 can be controlled to keep rotating speed, otherwise control the rotating speed of engine 302 to be incremented to the 3rd threshold value.When cell voltage is big
When Second Threshold, the rotating speed of engine 302 can be controlled to successively decrease.
In another embodiment, power generation control device 200 can also pre-set the 4th threshold value and the 5th threshold value,
When evaporator surface temperature is more than four threshold values, air-conditioning system 600 can be controlled to be in opening;When evaporator surface temperature
When degree is less than five threshold values, air-conditioning system 600 can be controlled to be closed.
It is the structured flowchart according to the air-conditioning system of the specific embodiment of the invention as shown in Figure 2, air-conditioning system 600 can be with
The condenser that is connected including compressor of air conditioner and with compressor of air conditioner, radiator fan, switch module, air blower, evaporator and
Temperature sensor.Wherein, condenser and radiator fan can be located in the first module, air blower, evaporator and temperature sensor
It can be located in the second module.Air-conditioning system 600 can also include the refrigerant being connected between the first module and the second module
Circulation line.Switch module can also be connected with the second module.
Fig. 3 is a kind of structured flowchart of the power generation control device of hybrid electric vehicle according to the specific embodiment of the invention.
Reference picture 3, power generation control device 200 includes threshold setting module 201, acquisition module 202 and control module 203.Specific real
Each module in Shi Zhong, power generation control device 200 can be attached and be communicated by CAN.
Threshold setting module 201 is used to set first threshold, Second Threshold and the 3rd threshold value.Wherein, Second Threshold is more than
First threshold.In specific implementation, first threshold can be battery voltage overvoltage threshold, and Second Threshold can be engine
Rotating speed successively decreases battery voltage threshold, and the 3rd threshold value can be engine air conditioning mode charging maximum speed threshold value.
Acquisition module 202 is used to obtain the travel speed of hybrid electric vehicle, the working condition of air-conditioning system 600 and started
The working condition of machine 301.Wherein, working condition can include opening and closed mode.
If the working condition that the travel speed of hybrid electric vehicle is equal to 0, engine 302 is opening and air-conditioning system
The working condition of system 600 is opening, then control module 203 is used to obtain cell voltage and engine speed.If battery
Voltage is more than first threshold, then control module 203 is used to control engine 302 to keep rotating speed;Otherwise control module is used to control
The rotating speed of engine 302 is incremented to the 3rd threshold value, if that is, cell voltage is less than or equal to first threshold and engine speed does not reach
To the 3rd threshold value, then the rotating speed of engine 302 is controlled to be incremented to the 3rd threshold value.If cell voltage is more than Second Threshold, control
Module 203 is used to control the rotating speed of engine 302 to successively decrease.
According to another embodiment of the present invention, in above-mentioned power generation control device 200, threshold setting module 201
It can be also used for setting the 4th threshold value and the 5th threshold value.Wherein, the 4th threshold value is more than the 5th threshold value, and the 4th threshold value can be evaporation
Device surface temperature control air conditioning clutch adhesive threshold value, the 5th threshold value can be that evaporator surface temperature control air conditioning clutch is broken
Open threshold value.
Acquisition module 202 can be also used for obtaining evaporator surface temperature.
If evaporator surface temperature is more than the 4th threshold value, control module 203 can be also used for controlling air-conditioning system 600
It is operated in opening.If evaporator surface temperature is less than the 5th threshold value, control module 203 can be also used for controlling air-conditioning
System 600 works in off position.
According to the still another embodiment of the present invention, in above-mentioned power generation control device 200, if hybrid electric vehicle
Travel speed be equal to 0 and air-conditioning system 600 working condition be closed mode when, control module 203 is additionally operable to control and started
Machine 302 stops working after idle n minutes.Wherein, n can be equal to 1.
According to still another embodiment of the present invention, in above-mentioned power generation control device 200, if the row of hybrid electric vehicle
Sail speed equal to 0, the working condition that the working condition of engine 302 is closed mode and air-conditioning system 600 be opening,
Then control module 203 is additionally operable to control engine 302 and is in opening.
According to the still another embodiment of the present invention, in above-mentioned power generation control device 200, if hybrid electric vehicle
Travel speed is not equal to 0, then control module 203 is additionally operable to control engine 302 and is operated in efficiency power generation pattern.
A kind of flow chart of the electricity-generating control method for hybrid electric vehicle that Fig. 4 provides for Ben Mingfa embodiments.Please
Refering to Fig. 4, methods described includes:
S405:First threshold, Second Threshold and the 3rd threshold value are set.Wherein, Second Threshold is more than first threshold.Specific
In implementation, first threshold can be battery voltage overvoltage threshold, and Second Threshold can be that engine speed is successively decreased battery electricity
Threshold value is pressed, the 3rd threshold value can be engine air conditioning mode charging maximum speed threshold value.
S406:Obtain the working condition of the travel speed, the working condition of air-conditioning system and engine of hybrid electric vehicle.
Wherein, working condition can include opening and closed mode.
S407:If the working condition that the travel speed of hybrid electric vehicle is equal to 0, engine is opening and air-conditioning
The working condition of system is opening, then obtains cell voltage and engine speed.Wherein, the travel speed of hybrid electric vehicle
It is that hybrid electric vehicle remains static equal to 0.
S408:If cell voltage is more than first threshold, control engine keeps rotating speed;If cell voltage be less than or
It is less than the 3rd threshold value equal to first threshold and engine speed, then controls engine speed to be incremented to the 3rd threshold value.
S409:If cell voltage is more than Second Threshold, control engine speed is successively decreased.
By above-mentioned electricity-generating control method, cell voltage can be controlled between first threshold and Second Threshold, so that
Prevent from charging the battery and overvoltage, the phenomenon of overcurrent occur, protect battery, extend battery life.Meanwhile, it is capable to ensure opening
Charged the battery when opening operation of air conditioner, improve energy utilization rate, reach the purpose of energy-conservation.
Fig. 5 is a kind of flow of the electricity-generating control method of hybrid electric vehicle according to another embodiment of the invention
Figure.Reference picture 5, above-mentioned electricity-generating control method also includes:
S401:4th threshold value and the 5th threshold value are set.Wherein, the 4th threshold value is more than the 5th threshold value, and the 4th threshold value can be
Evaporator surface temperature control air conditioning clutch adhesive threshold value, the 5th threshold value can be evaporator surface temperature control air-conditioning clutch
Device disconnects threshold value.
S402:Obtain evaporator surface temperature.
S403:If evaporator surface temperature is more than the 4th threshold value, control air-conditioning system is operated in opening.Its
In, can be by controlling air conditioning clutch adhesive so that air-conditioning system is started working, in opening.
S404:If evaporator surface temperature is less than the 5th threshold value, the work of control air-conditioning system is in off position.Its
In, can be by controlling air conditioning clutch to disconnect so that air-conditioning system is stopped, it is closed.So as to prevent evaporation
Device low temperature ice blockage pipeline, damages compressor assembly.
According to another embodiment of the present invention, above-mentioned electricity-generating control method also includes:If hybrid electric vehicle
Travel speed be equal to 0 and air-conditioning system working condition be closed mode when, control engine it is idle n minutes after put out
Fire.Wherein, n can be equal to 1.It can so prevent idling from not generating electricity, the energy is consumed in vain.
According to still another embodiment of the present invention, it can also include in above-mentioned electricity-generating control method:If hybrid power
It is opening that the travel speed of car, which is equal to the working condition that the 0, working condition of engine is closed mode and air-conditioning system,
Then control engine is in opening.
According to the still another embodiment of the present invention, it can also include in above-mentioned electricity-generating control method:If mixing is dynamic
The travel speed of power car is not equal to 0 (that is, hybrid electric vehicle is in transport condition) and air-conditioning system is in opening, then controls
Engine processed is operated in efficiency power generation pattern.Wherein, under efficiency power generation pattern, engine works in optimal generating efficiency work
Area, the optimal power generation operation area of engine is under different electric current operating modes, to select the engine speed under optimal power oil consumption,
Power oil consumption=generated output/oil consumption, optimal generating efficiency workspace is by power measured under substantial amounts of working condition measurement
Fuel consumption values.
Fig. 6 is the workflow diagram of the efficiency power generation pattern according to the specific embodiment of the invention.When engine is operated in
During efficiency power generation pattern, its workflow includes:
S601:Theoretical power consumption oil consumption and tolerance value are set.
S602:Obtain realtime power oil consumption.
S603:Judge realtime power oil consumption whether be more than theoretical power (horse-power) oil consumption and tolerance value and, i.e. judge realtime power
Oil consumption>Theoretical power (horse-power) oil consumption+tolerance value
S604:If realtime power oil consumption be more than theoretical power (horse-power) oil consumption and tolerance value and, control engine adjustment turn
Speed.
S605:If realtime power oil consumption be less than or equal to theoretical power (horse-power) oil consumption and tolerance value and, continue to judge reality
When power oil consumption whether be less than the difference of theoretical power (horse-power) oil consumption and tolerance value, i.e. judge realtime power oil consumption<Theoretical power (horse-power) oil consumption-
Tolerance value
S606:If it is determined that realtime power oil consumption is less than the difference of theoretical power (horse-power) oil consumption and tolerance value, then engine is controlled to adjust
Turn over speed.
S607:If it is determined that realtime power oil consumption is more than or equal to the difference of theoretical power (horse-power) oil consumption and tolerance value, then control is sent out
Motivation keeps rotating speed.
When hybrid vehicle is static, such as air-conditioning system is not opened, and engine stops working for idle 1 minute, prevents idle
Speed does not generate electricity, in vain energy loss;After air-conditioning system operation, cell voltage is less than overvoltage threshold c1, VCU control engine and turned
Speed in the way of progressively increasing be incremented by, engine speed reach start air conditioner open mode charge maximum speed threshold value d when or battery
Voltage stops engine speed when reaching overvoltage threshold c1 and is incremented by, and cell voltage and engine speed, which condition first reach
Then perform the condition first reached, cell voltage higher than engine speed successively decrease battery voltage threshold c2 when, engine speed is successively decreased,
Until cell voltage is less than battery voltage overvoltage threshold c1, engine speed stops successively decreasing, and prevents the appearance that charges the battery
Overvoltage, the phenomenon of overcurrent protects battery, extends battery life.Charge the battery, improve while operation of air conditioner is opened
Energy utilization rate, reaches the purpose of energy-conservation.Wherein, c1<c2.
The above-mentioned embodiment of the present invention can be implemented in various hardware, Software Coding or both combination.For example, this hair
Bright embodiment, which is alternatively in data signal processor (Digital Signal Processor, DSP), performs the above method
Program code.The present invention can also refer to computer processor, digital signal processor, microprocessor or field-programmable gate array
Arrange a variety of functions that (Field Programmable Gate Array, FPGA) is performed.Above-mentioned processing can be configured according to the present invention
Device performs particular task, its machine-readable software code that the ad hoc approach that the present invention is disclosed is defined by performing or firmware generation
Code is completed.Software code or firmware code can be developed into different program languages and different forms or form.Or
Different target platform composing software codes.However, configuring generation according to the software code of execution task of the present invention and other types
Different code pattern, type and the language of code do not depart from spirit and scope of the invention.
This schematical embodiment is the foregoing is only, on the premise of the design and principle for not departing from this, is appointed
Equivalent variations and modification that what those skilled in the art is made, all should belong to the scope of protection of the invention.
Claims (13)
1. a kind of electricity-generating control method of hybrid electric vehicle, the hybrid electric vehicle includes engine, air-conditioning system and battery, its
It is characterised by, methods described includes:
First threshold, Second Threshold and the 3rd threshold value are set, wherein, the Second Threshold is more than the first threshold;
Obtain the work shape of the travel speed, the working condition of the air-conditioning system and the engine of the hybrid electric vehicle
State;
If the working condition that the travel speed of the hybrid electric vehicle is equal to the 0, engine is opening and described
The working condition of air-conditioning system is opening, then obtains cell voltage and engine speed;
If the cell voltage is more than the first threshold, the engine is controlled to keep rotating speed;If cell voltage is small
It is less than the 3rd threshold value in or equal to first threshold and engine speed, then controls the engine speed to be incremented to the 3rd threshold
Value;
If the cell voltage is more than the Second Threshold, the engine speed is controlled to successively decrease.
2. electricity-generating control method as claimed in claim 1, the air-conditioning system includes evaporator, it is characterised in that the side
Method further comprises:
4th threshold value and the 5th threshold value are set, wherein, the 4th threshold value is more than the 5th threshold value;
Obtain evaporator surface temperature;
If the evaporator surface temperature is more than the 4th threshold value, the air-conditioning system is controlled to be operated in opening;
If the evaporator surface temperature is less than the 5th threshold value, the air-conditioning system work is controlled in off position.
3. electricity-generating control method as claimed in claim 1, it is characterised in that methods described further comprises:If described mixed
Close power car travel speed be equal to 0 and the air-conditioning system working condition be closed mode, then control the engine
Stop working after idle n minutes.
4. electricity-generating control method as claimed in claim 1, it is characterised in that methods described further comprises:If described mixed
The travel speed for closing power car is equal to work of the working condition of the 0, engine for closed mode and the air-conditioning system
State is opening, then controls the engine to be in opening.
5. electricity-generating control method as claimed in claim 1, it is characterised in that methods described further comprises:If described mixed
The travel speed for closing power car is not equal to 0, then controls the engine to be operated in efficiency power generation pattern.
6. electricity-generating control method as claimed in claim 5, it is characterised in that the control engine is operated in efficient hair
Power mode includes:
Theoretical power (horse-power) oil consumption and tolerance value are set;
Obtain realtime power oil consumption;
Judge the realtime power oil consumption whether be more than the theoretical power (horse-power) oil consumption and the tolerance value and;
If the realtime power oil consumption be more than the theoretical power (horse-power) oil consumption and the tolerance value and, control the engine
Rotating speed is adjusted, otherwise continues to judge whether the realtime power oil consumption is less than the theoretical power (horse-power) oil consumption and the tolerance value
Difference;
If it is determined that the realtime power oil consumption is less than the theoretical power (horse-power) oil consumption and the difference of the tolerance value, then the hair is controlled
Motivation adjusts rotating speed, otherwise controls the engine to keep rotating speed.
7. a kind of power generation control device of hybrid electric vehicle, the hybrid electric vehicle includes engine, air-conditioning system and battery, its
It is characterised by, the equipment includes:
Threshold setting module, for setting first threshold, Second Threshold and the 3rd threshold value, wherein, the Second Threshold is more than institute
State first threshold;
Acquisition module, for obtaining the travel speed of the hybrid electric vehicle, the working condition of the air-conditioning system and described
The working condition of engine;
Control module, if the working condition that the travel speed of the hybrid electric vehicle is equal to the 0, engine is opening
And the working condition of the air-conditioning system is opening, then for obtaining cell voltage and engine speed;If described
Cell voltage is more than the first threshold, then for controlling the engine to keep rotating speed, if cell voltage is less than or equal to
First threshold and engine speed are less than the 3rd threshold value, then for controlling the engine speed to be incremented to the 3rd threshold value;
If the cell voltage is more than the Second Threshold, for controlling the engine speed to successively decrease.
8. power generation control device as claimed in claim 7, the air-conditioning system includes evaporator, it is characterised in that described to set
It is standby to further comprise:
The threshold setting module is additionally operable to set the 4th threshold value and the 5th threshold value, wherein, the 4th threshold value is more than described the
Five threshold values;
The acquisition module is additionally operable to obtain evaporator surface temperature;
If the evaporator surface temperature is more than the 4th threshold value, the control module is used to control the air-conditioning system
It is operated in opening;If the evaporator surface temperature is less than the 5th threshold value, the control module is used to control
The air-conditioning system work is in off position.
9. power generation control device as claimed in claim 7, it is characterised in that the equipment further comprises:If described mixed
Close power car travel speed be equal to 0 and the working condition of the air-conditioning system be closed mode, then the control module is also
For stopping working after controlling the engine idle n minutes.
10. power generation control device as claimed in claim 1, it is characterised in that the equipment further comprises:If described mixed
The travel speed for closing power car is equal to work of the working condition of the 0, engine for closed mode and the air-conditioning system
State is opening, then the control module is additionally operable to control the engine to be in opening.
11. power generation control device as claimed in claim 1, it is characterised in that the equipment further comprises:If described mixed
The travel speed for closing power car is not equal to 0, then the control module is additionally operable to control the engine to be operated in efficiency power generation mould
Formula.
12. power generation control device as claimed in claim 11, it is characterised in that the control engine is operated in efficiently
Power generation mode includes:
Theoretical power consumption oil consumption and tolerance value are set;
Obtain realtime power oil consumption;
Judge the realtime power oil consumption whether be more than the theoretical power (horse-power) oil consumption and the tolerance value and;
If the realtime power oil consumption be more than the theoretical power (horse-power) oil consumption and the tolerance value and, control the engine
Rotating speed is adjusted, otherwise continues to judge whether the realtime power oil consumption is less than the theoretical power (horse-power) oil consumption and the tolerance value
Difference;
If it is determined that the realtime power oil consumption is less than the theoretical power (horse-power) oil consumption and the difference of the tolerance value, then the hair is controlled
Motivation adjusts rotating speed, otherwise controls the engine to keep rotating speed.
13. a kind of hybrid electric vehicle, it is characterised in that the hybrid electric vehicle is included as described in claim 7-12 any one
Power generation control device.
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Address after: Economic Development Zone Shandong city Dezhou province 253500 hills District Yingbin North First Street Applicant after: Shandong yuan Qi new power technology Co., Ltd. Address before: Economic Development Zone Shandong city Dezhou province 253500 hills District Yingbin North First Street Applicant before: Dezhou flurida Intelligent Vehicle Research Ltd. |
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Application publication date: 20171020 |